{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9ad03c356e25d327ae88cb1071335b122c359ca6faeb91700060c1e559cfeea6",
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    "signer": "0x2AbDb7b181eb043319a300588954173627b6baf8",
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  }
}